package com.sky.mapper;


import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;


@Mapper
public interface ShoppingCartMapper {

    /**
     * 动态条件查询
     *
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);


    /**
     * 根据id修改购物车商品数量
     *
     * @param shoppingCart
     */
    @Update("update shopping_cart set  number=#{number} where id=#{id}")
    void updateNumberByid(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     *
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart(name, image, user_id, dish_id, setmeal_id, dish_flavor, number, amount, create_time)" +
            " values(#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime}) ")
    void insert(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     *
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id=#{userId}")
    void deleteByUserId(Long userId);


    /**
     * 删除购物车的一个商品
     *
     * @param shoppingCartId
     */
    @Delete("delete from shopping_cart where id = #{shoppingCartId}")
    void sub(Long shoppingCartId);

    /**
     * 批量插入
     * @param shoppingCarts
     */
    void insertBatch(List<ShoppingCart> shoppingCarts);

}
